Owner's manual

5-1

Section 5. Data Retrieval

Data retrieval is accomplished on PCs using SMS (part of the PC208W package). Other

computers require a software program which makes use of the Storage Module

telecommunications commands (Appendix B). This process requires both a hardware

interface and a software program.

5.1 Hardware

There are two interfaces which enable communication between a computer and

the Storage Module:

1. The SC532(A) Peripheral to RS232 Interface

2. The CR500/510, CR10/10X or CR23X with a suitable cable and interface

(not possible with other dataloggers)

The SC532(A) can function with any computer that has an RS232 port. A

software program is required to raise the DTR and RTS (pins 20 and 4,

respectively) to activate the Storage Module (Section 5.2). SMS performs this

function automatically.

9227

a a

Logan, UT

SM4M

SN:

SOLID STATE STORAGE MODULE

MADE IN USA

FIGURE 5-1. Storage Module Connected to a Portable PC via an SC532(A) Interface

5.1.1 SC532(A) Interface

A standard 25-pin ribbon cable (e.g., Campbell Scientific SC25) links the

SC532(A) to the computer’s 25-pin serial port. If the computer has a 9-pin

serial port, a 9-pin to 25-pin adaptor cable is required. For the SC532A you

will need a standard 9-pin (or 25-pin, depending on your PC) to 9-pin data

cable for linking PC to interface. The SC12 9-pin ribbon cable links the

Storage Module to the SC532(A) (see Figure 5-1).

The SC532(A) requires 12 VDC (nominal) which is usually provided by

plugging the AC adapter into a standard 120 VAC outlet. The use of battery

power is possible and is described in the SC532(A) manual. The SC532A also